Adjustable window ventilator



- A rifi 16; 19.40. T. L. ATKINSON ADJUSTABLE WINDOW VENTILATOR Filed Ndv. so. 1936 Patented Apr. 16, 1944 ADJUSTABLE WINDOW 'VENTILATOR Truman Atkinson, Ludington, Mich. Application November 30, 1936, Serial No. 113,337

7 Claims.

This invention relates to window ventilators, and is primarily concerned with the production of an adjustable ventilator Which may be readily applied to windows having difierent. widths.

Ventilators used at the lower ends and at the inner sides of Windows usually include an upwardly and inwardly inclined plate of glass. The window being raised less than the vertical height of. the glass, air entering the window is carried 101 upwardly and over the upper edge of the ventilator glass into the room without a draft coming directly and straight into the room and against persons therein.

Windows are of varying widths and in many Ill instances in order to provide a ventilator the glass must be especially cut to a length corresponding with the width of each window. With my invention a longitudinally adjustable venti later is provided which may be adjusted to a .de-

1 sired length in correspondence with the width of the particular window with which it is to be installed. The invention is concerned with many novel constructions and arrangements and organizations of parts for very eii'ectively and prac-.

i tically producing an adjustable window ventilator in which the body thereof is of.glass, and to provide simple and practical means for making two glass plates readily adjustable jwith'resp'ect to each other and at the same time att achable at 1 their outer ends to the window casing.

An understanding of the invention may be had from the following description'taken in connection with the accompanying drawing, in which,

Fig. 1 is a perspective .view showing the ventiflf later of my invention located at the inner side of a window.

Fig. 2 is a plan view thereof. I

Figs. 3 and 4 arevertical sections substantially on the planes of lines 33 and t4-'of Fig. 1, and

Figs. 5 and 6 are fragmentary perspective views taken, respectively, at the oppositeends of the ventilator construction. s

Like reference characters refer to like parts in the different figures of the drawing.

48 The window at which the ventilator is located has a horizontal lower sill I and a casing having vertical sides 2. It is at the inner side of the casing that the ventilator is to be located with its lower edge resting upon the upperside of the sill i, and with attaching means at the ends of the ventilator connected to the inner sides of the vertical members of the window casing.

In the construction of the ventilator'two glass plates are used one of which is indicated at 3 II and which at both its upper and lower edges has a U-shaped metal rim 4 permanently secured thereto." The other length of glass 5 is so located with respect to the glass 3' that the two lengths of glass may have a telescoping movement with respect to each other. At both the upper and lower edges of the second section 5 of the glass a sheetmetal member is connected which is bent into the form shown in Fig. 4. There is provided in this sheet metal member a flange '6', which lies at the inner side of the glass plate 5, from which a section I is turned at right angles to pass over and under the upper and lower edges of. the plate, the metal being continued in a convex curved section 8 and then bent inwardly at 9 to substantially, the inner edge of the outer leg of the channel members 4 which are on theplate 3, the metal being then return bent in a section ll) which lies against the section 9, further bent into a curved section H lying at the inner side of the concaved section 8, and terminating in a flange l2 which comes at the opposite side of the plate 5, the flanges 6 and I2 being permanently cemented or otherwise connected with the plate 5 at both the upper and lower edgeportions of the plate. This provides a telescoping connection of the glassplates, the plate 3 with the U-, shaped sheet metal members 4 at its opposite upper and lower edges sliding within the guide provided by the sections l0 and I2. 4

At the outer end of each glass plate a sheet metal memberto be detachably connected with the vertical members of the window casing is used. The sheet metal members are metallic plates I3, wider attheir upper than at their lower edgesand each has an angular section I4 bent inwardly for a distance, then bent outwardly to provide a section E5 to lie against the outer sides of the sheet metal rims on the plates 3 and 5 respectively, then bent into a section It which lies against the ends of the glass plates and terminating in a flange I! which parallelsthe section and lies against the inner side of. the rim of the adjacent plate. At the outer end of the glass plate 3 the upper sheet metal border member 4 has a tongue l8 struck from a leg thereof which passes over and embraces the upper-end of the section [5 as shown in Fig. 5, thereby precluding endwise movement of the plate 3 with respect to the sheet metal plate l3. The member connected at the outer end of the glass plate 5 is of identical structure. The upper sheet metal member which lies alongside the upper edge of the plate 5 is partly cut away as shown in Fig. 6, adjacent its outer end, and a lip l9 extending directly from the section 1 lies against the upper part of the section ill of the end support, serving the same purpose as the tongue l8 described with reference to Fig. 5.

With the construction described the ventilator may be installed with its lower edges upon the upper side of the sill I and adjusted in length so that the plates is come against the inner sides of the vertical window casing members 2, screws or equivalent detachable fastening devices being passed through the plates l3 and driven into the window casing members. This provides a ventilator which may be applied within limits to windows of varying widths. The narrowest window to which the same can be applied would have a width substantially equal to the length of the longest glass plate section, and the ventilator may be applied to other windows having greater widths until a width is reached which is slightly less than the combined lengths of the glass plates 3 and 5. This provides a wide range of use for the ventilator. The invention is of a very simple, practical and efficient construction and has proved exceptionally useful in service.

The claims appended hereto define the invention which is to be considered comprehensive of all forms of structure coming within their scope.

I claim:

I. A window ventilator construction comprising two rectangular elongated glass plates, sheet metal members attached to and embracing the opposite longitudinal edges of said plates, means on the sheet metal members on one of said plates slidably receiving the sheet metal members of the other plate, end members of sheet metal formed each at one edge with a channel shape trough, the outer end of each of said glass plates being received therein, the sheet metal members engaging the top edges of said plates being partially slit vertically to form engaging tongues, said tongues being bent in spaced relationship relative'to said plates, said tongues operatively engaging the outer face of each of said end members to prevent accidental disengagement thereof.

2. In a window ventilator, a rectangular elongated glass plate, U-shaped sheet metal border strips embracing and permanently connected to the longitudinal edges of said plate, a second glass plate of similar form, metal border strips at each longitudinal edge of the second glass plate formed from a single length of sheet metal bent longitudinally midway between its edges and formed into a double thickness U-shaped guide, one thickness of which passes to one side of the second glass plate and the other to the other side thereof and being permanently secured thereto, the metal border strips of the first glass plate being received in said guide for telescoping sliding movement therein, as specified.

3. The combination with a glass panel having a sheet metal channel member positioned over and securely attached to the edge of said panel, of a lip formed adjacent the end of said channel, and a sheet metal supporting plate, said plate being mounted at one edge thereof and being formed with an outwardly extending U-shaped channeled guide, the sides of which are substantially at right angles to said plate, said U-shaped channeled guide receiving the outer end of said panel and said lip engaging the outer face of said supporting plate for the purpose described.

- 4. The combination with a glass panel having a sheet-metal channel member positioned over and securely attached to the edge of said panel,

oneleg of said channel being split vertically adlament the end thereof to form a cut away portion, said cut away portion being spaced from said panel thereby forming a downwardly extending engaging lip, of a sheet metal supporting plate, said plate adjacent one edge thereof being formed with an outwardly extending U-shaped channelguide, the sides of which are positioned substantially at right angles to said plate, said U-shaped channel guide receiving the outer vertical edge of said panel and said lip engaging the outer face of said supporting plate, for the purpose described.

5. The combination with a glass panel having a sheet metal channel member positioned over and securely attached to the horizontal longitudinal edge thereof, said channel being slit Vertically adjacent its end to form a cutaway portion, said cut away portion being spaced from a said panel, thereby forming a downwardly extending engaging lip, of a sheet metal supporting plate, said plate adjacent one edge thereof being formed into an outwardly extending U- shaped channel guide, the legs of said channel being located substantially at right angles to said plate, said U -shaped channel guide receiving the vertical edge of said panel, and said lip extending over and engaging the leg of said U- shaped channel guide which is adjacent said plate for the purpose described.

6. In an extensible glass panel of the class described having two sheets of glass in face-toface sliding relation with each other, a double channel member comprising a single length of sheet metal bent longitudinally at a point spaced from one edge thereof for a short distance at substantially right angles, a convex portion extending therefrom, a portion extending from said convex portion in parallel relationship with the first portion, another portion doubled back upon itself adjacent said last named portion and the convex portion, and terminating in an extension parallel to and substantially midway between the other two parallel portions, for the purpose described.

7. The combination of elements as defined in claim 6, the first portion and said extension forming two legs of one channel to which is rigidly secured one sheet of glass and the other channel formed thereby adapted to slidably receive the longitudinal edge of the other sheet of glass.

.TRUMAN L. ATKINSON. 

